Offset geared nutrunner attachment

Abstract

A powered wrenching tool adaptable to be powered by any reversible drive mechanism is formed with a support for drive wheels and idler wheels with the idler wheels being movable with respect to the drive wheels, to adjust the tool for differing diameters of objects to be rotated. The tool is adapted to interface to the axis of the diameters of objects. The drive wheels engaging the objects without requiring the tool to circumscribe the object. The rotational axis of idler wheels and the drive wheels are positioned above and below with respect to each other. The upper and lower wheels are clamped together on the diameter by the handle on the tool. The tool is adapted on one side to have the drive source attached. Only the wheels of the tools are rotated and the tool neeed not rotate with respect to the diameter to be rotated.

I claim: 
     
       1. A power operated tool for use in adjusting vehicle tie rods comprising: a gear box frame having left and right portions, each portion having two cavities on an inner surface thereof adjacent to one end of the portions, a second cavity positioned below and in communication with each of said two cavities, a third cavity adjacent another end of the portions and in communication with the second cavity;   a set of driven gears secured to appropriate gear shafts and mounted in the two cavities, one in each of the cavities, an idler gear mounted in the second cavity for engagement with each of the driven gears, a driving gear mounted in the third cavity and in engagement with the idler gear for providing driving torque to the idler gear and to the driven gears; the driving gear extending through one of the frame portions for attachment to a power source;   a knurled wheel mounted to each driven gear shaft, one on each end of the shaft;   a handle assembly having an elongated handle member and a pair of clevis members, an aperture in each of the clevis members;   the gear box frame having opposing apertures in each frame portion that are aligned with the apertures in each of the clevis members, a retaining means to pivotally mount the gear box frame to the handle assembly; said retaining means fitting into the apertures in the clevis members and the apertures in the frame portions;   an upper idler assembly mounted on an end of the handle in opposition to the gear box frame, a pair of wheels mounted on the upper idler assembly in a position opposite to the knurled wheels;   biasing means on the gear box frame to secure the gear box frame in either a working or disengaged position.   
     
     
       2. A power tool as recited in claim 1 further comprising grease fittings in the gear box frame. 
     
     
       3. A power tool as recited in claim 1 wherein said biasing means comprises a spring secured within a housing mounted on one frame portion and a plunger screw securing the spring within the housing.